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(No Model.)

W'. COOKE 8v D.-CARLOUGH.

MACHINE FOR UPSETTING EYE BARS.

No. 380,863. Patentedpr. l10, l1888.

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WATTS COOKE AND DANIEL OARLOGH, OF PATERSON, NEV JERSEY.

MACHINE FOR UPSETTING EYEnBRS.

SPECIFICATION forming part of Letters Patent No. 380,863, dated April l0, 182m.

Application led January 14, 1888. Serial No. 200,759. (No model.)

To @ZZ whom, it may concern:

Be it known that we, WATTS COOKE and DANIEL CARLoUcH, of Paterson, in the county of Passaic and State of New Jersey, have invented a certain new and useful Improvement in Machines for Upsetting Eye- Bars, of which the following is a specifica` tion.

rllhe machine is of that class in which a previously-rolled or otherwise manufactured bar of uniform rectangular section throughout and having an excess of length is enlarged at each end, so as to make a suitable strong eye adapted to receive a thick and stout transverse pin, with the metal around the hole as strong as the main body and somewhat stronger.

The operation is effected alternately at cach end by heating that end of the bar and, while holding it inclosed in a die of suitable form, strongly compressing it endwise, so as to force more metal into that part and produce the rcquired widening.

Many efforts have been previously made by ourselves and others to effect the upsetting with rapidity and certainty by the aid of machinery. The principles involved in our pres ent machine are similar to those in the machine set forth in the patent to us dated October l2,

1885, No. 328,290. XVe haveinvented impor1` tant improvements in the details.

Ve provide exchangeable cheeks which eX- tend each side ofthe eye and shape the whole outline, except the portion which is shaped by direct contact with the end of the heading or upsetting ram. XVe make these exchange able cheeks in two pieces on each side, any one of which may be applied and removed independently of the others. changing serves two purposes. We can, by substituting larger or smaller pieces, adapt the machine for treating different-sized bars and producing different-sized eyes, and we can facilitate the removal of an eye-bar when it has, through the strong pressure given in the upsetting, filled the space very tightly and it requires force to dislodge it. By extending these cheeks along the entire side we better insure the correct shaping of all parts of the eye. 'We provide round holes in these cheeks and match these holes upon pins in the bed. This The capacity forex- Y facilitates easy and accurate litting with ordinary tools. XVe let the entire lower die move with the metal being upset. Ve mount this sliding die on antivfrictiou rollers arranged to afford au efficient support to resist the great strain to which the parts are subjected, while facilitating the case of movement.

The accompanying drawings form a part of this specification, and represent what we consider the best means of carrying out the invention.

Figure l is a side elevation. Fig. 2 is a plan view with certain upper portions removed. Fig. 3 is a longitudinal vertical section on the line @c a: in Fig. 2. Fig. t is a cen t-ral transverse vertical section.

Similar letters of reference indicate corresponding parts in all the figures where they occur.

A isthe bed-casting, made with its upper face or the main portion of its upper face grooved'transversely to receive a series of anti-friction rollers,\V, which roll therein and present their highest points a little above the upper surface ot' the bed. They carry the lower die, B, and allow it to move endwise with but moderate friction. The bed A is also grooved longitudinally, as shown by a, thus providing pockets, which, being cleaned at intervals, tend to avoid difficulty from hammer-scales or other dirt which may accumulate. A stout upright projection, B', at the back end of the lower die, B, acts against the end of the hot bar M, to effect the upsetting.

A strong upsetting force is received from a ram, R, actuated by a steam-piston or other device. (Not shown.)

G is the upper die. It is provided with a web, G, of dovetail section, which engagesin a corresponding groove in the carrier D,which is raised to allow the removal of the cour pleted eye, and is lowered and held strongly down upon the metalM during the upsetting by the aid of a hydraulic press or other efticient means. (Not represented.)

The holding` of the main body, of the bar M, which it will be understood is allowed to remain cold to resist the strong upsetting force, may be effected, as is usual in such machines, by au adjustable stop which abuts against the IOO outer end of the bar and by aseries of clamps which firmly hold down the bar upon the longitudinal beam or support. All this may be of any ordinary or suitable character, but need not be specially represented. The parts which mold and contribute to shape the outline of the eye are fully represented, and will be particularly described.

A2 A2 A3 A3 are cylindrical or slightlytapering round pins set firmly in the bed A in perpendicular positions. These pins are rcceived in corresponding holes in the exchangeable cheeks and serve to support them against the great strain to which they are subjected.

A' A' are stout projections or rests cast or otherwise formed on the bed in the positions represented, which support the cheeks against spreading laterally.

C C are the two forward cheeks, which arc of the proper form to mold the front of the eye and the neck or the portion by which the eyejoins to the body of the bar. It is found that thejunction of the eye with the body is peculiarly liable to fracture. IVe taper these, so as to render the whole of uniform strength or to give a surplus strength here, if desired. The effective ends of these cheeks are supported against spreading by resting squarely against the inner faces of the rests A A'.

K K are the back cheeks. The pins A3 A3, on which they are mounted, resemble in position and function the corresponding pins, A2 A2, which support the front cheeks, that of resisting the strain and holding the cheeks in position, the arrangement being adapted to allow the cheeks to loe easily removed by lifting' by hand or by any suitable pry, and to allow them to be easily reapplicd even under conditions illy adapted for nice and acute observation or careful work. These back cheeks differ from the front cheeks in allowing no taper in the channel in which the bar is received. They maintain aspace forthe bar beyond the eye, which is of uniform section throughout. The rain R acts on the heated metal which lies in this channel and drives it forcibly endwise without much changing its figure. The widening of the hot metal occurs when it emerges from this channel into the liberal space provided for the eye. On thus emerging its width is greatly increased, so as to fill or nearly iill the proper space provided for the eye. The back cheeks, K K, are longer than the front cheeks. An extension, K', on each lies along the inner face of the corresponding rest, A', and fits obliquely against or close to the adjacent portion of the frontcheek.

The construction provides that onefront cheek, C, and the corresponding back cheek, K, with its extension K', may shape the entire side of the eye. The reduction of the'thickness of the eye by any suitable means, as by hammering or rolling after its removal from our upsetting-machine, spreads the eye still more, and by a nal treatment in a proper box-die completes the perfection of the shape.

Our present invention allows the employment of grooves in the upper and lower dies to form corresponding ridges in the metal to aid in'arresting any tendency of the metal to buckle edgewise. XVe propose to use such if 1t shall be found expedient; but we believe the machine will succeed perfectly without such grooves in the dies, and consequently without forming any ridges in the eye, which require to be subsequently hammered down or otherwise reduced.

Modifications may be made without departing from the principle or sacrificing the ad vantages of the invention. v

Instead of the rectangular form shown, the cheeks may be shaped to give a circular or elliptical form or egg shape or pear shape to the eye. A greater or less amount of taper of the neck may be produced.

Parts of the invention can be used Without the whole.

We claim as our inventionl l. In a machine for upsetting eye-bars, in combination with the means for supporting and holding the bar against end movement, the short cheeks C C, long cheeks K K, supports A, ram R, and means, as the bottom die, B, andtop die, G, for restraining the expansion facewise, arranged for joint operation, substantially as herein specified.

2. In a machine for upsetting eye-bars, the series of anti-friction rollers NV, mounted in the bed A, in combination with the movable lower die, B, suitable cheeks or edge dies and top die, and the ram R, as herein specified.

In testimony whereof we have hereunto set our hands, at New York city, this 9th day of January, 1888, in the presence oftwo subscribf ing witnesses.

VATTS COOKE. DANIEL CARLOUGH. fitnesses to the signature of Vatts Cooke:

M. F. BOYLE, A. L. Wnsrmzook. Witnesses to the signature of Daniel Carlough:

M. FrBoYLE, CHARLES R. SEARLE. 

